Armchair



FIG. 1 is a perspective front elevational view of an armchair showing the new design;

FIG. 2 is a perspective side elevational view of the armchair, as seen from the right-hand side of FIG. 1;

FIG. 3 is a plan view of the armchair;

FIG. 4 is a perspective rear elevational view of the armchair; and

FIG. 5 is a bottom plan view of the armchair.

The side of the chair not shown is a mirror image of the side shown in FIG. 2. 

The ornamental design for an armchair, substantially as shown and described. 